Get the storage folder; redirect the domain there;
Get the code into the target dir: $ svn co http://core.svn.wordpress.org/tags/2.9 .
Copy wp-config.php $ cp wp-config-sample.php wp-config.php
Get new secret keys: https://api.wordpress.org/secret-key/1.1/
Edit wp-config.php $ vi wp-config.php Change dbname, hostname, password. Change 4 secret key lines to above lines.
Run config: http://example.com/blog/wp-admin/install.php
Set [...]